baber/WOPTO huggingface dataset:
Patent GB-287466-A (GB)
IPC: H03B27/00
Filed: 1928-03-19
Abstract: 287,466. British Thomson-Houston Co., Ltd., (Assignees of Young, C. J.). March 18, 1927, [Convention date]. Thermionic generators.-Polyphase oscillations of predetermined frequency, usually within the audible range, are generated by causing highfrequency polyphase oscillations to beat with single-phase oscillations of a different and preferably variable frequency. Single-phase oscillations produced by a back-coupled valve 1 are amplified by the valve 5 and are passed through phase-splitting branch circuits 14 - - 16. These branches are coupled to the grid circuits of modulator valves 20 - - 22, which circuits also include the secondary of a transformer 25 supplying single-phase oscillations from the valve oscillator- 26 and amplifier 28. The oscillator 26 is tuned to an adjustable frequency differing from that of the oscillator 1. The beat currents thus produced in the plate circuits of the modulators are fed to a three-phase circuit through a three-phase transformer 33, which has two primary windings on each leg of its three-phase core. Each plate circuit traverses two of these windings on different legs of the core, with the result that the direct current flux, and also the flux due to certain harmonics and single-phase components, balance out. High harmonics and other components of high frequency may be eliminated by filters in the modulator plate circuits, such as the series inductance 30 and the shunt condensers 39, 42. The sum instead of the difference frequency may be utilized in the output circuit, in which case the modulator output filters are suitably modified. There are no circuits tuned to the output frequency, which is determined solely by the adjustment of the tuning of the oscillator 26.
Patent GB-659751-A (GB)
Title: Derivatives of dithiodiglycollic acid
Filed: 1948-03-23
Abstract: Sulphur containing resinous compositions are obtained by using as plasticizers for resins such as vinyl chloride-acetate copolymers, polyvinyl chlorides and acetates, esters of dithiodiglycollic acid in which the ester groups are any of the following kinds: (a) saturated unsubstituted alkyl groups having at least three carbon atoms; (b) saturated alkyl groups in which one or more of the hydrogen atoms are replaced by non-ionizable and non-basic groups; (c) substituted or unsubstituted alkyl groups having one or more carbon to carbon unsaturated linkages; (d) aryl groups with or without ring substitutents; (e) aralkyl groups with or without ring substituents; (f) substituted or unsubstituted cycloalkyl groups, and (g) heteroalkyl or heteroaryl groups.ALSO:Esters of dithiodiglycollic acid are prepared by heating a mixture of dithiodiglycollic acid or acid halide thereof and an esterifying agent in the presence of a condensation catalyst, the required esterifying agent being an organic hydroxy compound or an alkali metal salt thereof or an organic halide in which the organic group is one of the following: (a) a saturated unsubstituted alkyl group having at least three carbon atoms; (b) a saturated alkyl group in which one or more of the hydrogen atoms are replaced by non-ionizable groups and non-basic groups, e.g. hydroxy, ether, halogen or thiol radicals; (c) an unsubstituted or substituted alkyl group having one or more carbon to carbon unsaturated linkages, e.g. alkenyl or alkynyl groups; (d) an aryl group with or without various ring substituents; (e) an aralkyl group with or without various ring substituents; (f) a cycloalkyl group or a substituted cycloalkyl group, and (h) a heteroalkyl or a heteroaryl group.  When water is formed during the reaction as a result of heating dithioglycollic acid and an esterifying agent containing a free hydroxyl group under reflux, the reaction may be conducted in the presence of a water entraining agent, e.g. benzene, toluene or carbon tetrachloride. A number of organic groups are referred to particularly of type (a) and (b) above; chloroethyl is given as an example of a halogen substituted alkyl group.  In the examples, esters are prepared from n-propyl-, isobutyl-, n-octyl-, n-tetradecyl- and cetyl-alcohols, ethylene glycol, cyclohexanol, benzyl-, isoamyl-, allyl- and tetrahydrofurfuryl-alcohols and glycol mono-methyl ether.
Patent GB-745340-A (GB)
Title: Hydroforming of naphthas
IPC: C10G35/085
Filed: 1951-11-16
Abstract: In hydroforming naphthas using a fixed bed of platinum- or palladium-alumina catalyst prepared by the process claimed in Specification 745,284, the reactions being carried out under conditions, including the use of pressures not exceeding 500 lbs. per sq. in., such that relatively rapid contamination of the catalyst with carbonaceous matter occurs, the hydroforming reaction is periodically interrupted and the catalyst is regenerated by treatment with air.  Preferred hydroforming pressures are 50-250 lbs. per sq. in.  The regeneration may be effected at a temperature of 900 DEG F. or higher and at atmospheric pressure or e.g. a pressure of 200 lbs. per sq. in.  The duration of each hydroforming period may be 0.25-4 hours and the duration of the regeneration period 0.5-4 times that of the hydroforming period.  When the catalyst contains fluoride, it may be necessary to reactivate it with hydrogen fluoride following or during regeneration.
Patent GB-609648-A (GB)
Title: Improved resins and compositions containing the same
IPC: C08G63/553
Filed: 1946-03-19
Abstract: Synthetic resins for use in lacquers, varnishes and various coating compositions are prepared by reacting fumaric acid-conjugated acyclic diene adducts with at least one polyhydric organic compound containing two or more hydroxyl groups attached to different carbon atoms in an open chain.  The conjugated acylic diene may be butadiene, piperylene, isoprene, or an isoprene-piperylene mixture, and examples of the polyhydric organic compound are ethylene glycol, butylene glycol, diethylene glycol, tetraethylene glycol, glycerol, polyglycerols, glycerol monomethyl ether, a -glycerol phenyl ether, glycerol furfuryl ether, pentaerythritol, sorbitol and mannitol. Modifiers may be added, such as fatty oil mono- and di-glycerides, saturated and unsaturated fatty acids, saturated and unsaturated polycarboxylic acids, natural or artificial resins such as ureaand melamine-formaldehyde resins and particularly alkylated urea and melamine resins, drying oils and non-drying oils.  Catalysts such as benzene sulphuric acid, naphthylamine sulphuric acid, cobalt linoleate, lead oleate, aluminium stearate or silica gel or retarders such as naphthalene or boric acid may be employed.  The resins are soluble in benzene, toluene, xylene, ethyl benzene, naphtha, carbon tetrachloride and other hydrocarbon solvents. The preparations of adducts of fumaric acid with an isoprene-piperylene mixture, isoprene, allo-ocimene and butadiene are described.  In the examples, resins are made from (1) an isoprene-fumaric acid adduct, refined linseed monoglyceride and glycerol; (2) isoprene-fumaric acid adduct, refined linseed mono glyceride, glycerol and fumaric acid; (3) isoprene-fumaric acid adduct, linseed acids and pentaerythritol; (4) isoprene-fumaric acid adduct, refined castor oil, glycerine, soya fatty acids; (5) phthalic anhydride, isoprene-fumaric acid adduct, refined castor oil, soya fatty acids and glycerine; (6) the resin from example 1, butylated urea-formaldehyde resin and cobalt naphthenate.
Patent GB-537644-A (GB)
Title: Improvements relating to fastening devices
IPC: F16B37/04
Filed: 1940-05-13
Abstract: 537,644. Bolting. TINNERMAN PRODUCTS, Inc. May 13, 1940, No. 8579. Convention date, Sept. 1, 1939. [Classes 44 and 89 (i)] Fastenings such as sheet metal nuts for use in cases where the rear of the work is inaccessible are put in place through special assembly holes in which they are held by the combined action of a spring tongue and an offset shoulder. The nut is made from a blank 10, Fig. 6, stamped with an offset 20 with screw thread engaging tongues 11, 12 and with spring tongues 15, 17, the latter being bent up to form an article-engaging abutment 16. The sides of the blank are compressed at 25, 26 to form projecting ribs that prevent the nut from passing completely through the assembly hole 2. The nut is inserted in the canted position shown in Fig. 1 and is swung down to the position shown in Fig. 4 in which it is retained by the combined action of the offset 20, the abutment 16 on the spring tongue 17 and the ribs 26. In a modification the blank has a perforation in which a clinch nut is anchored. In a further modification, the side tongues 15 are dispensed with; the thread engaging portion is formed by a circular orifice deformed to suit the thread helix as permitted by a narrow lateral slot; the ribs 26 are replaced by lugs on the stamped-out. blank; the tongue 17 is replaced by a tongue 63, Fig. 11, between side lugs 61, 62. The device may have a spring tongue 70, Fig. 12, for clamping a rod or cable R and in this case the other end is bent at 72 to engage a second thread.
Patent GB-845655-A (GB)
Title: Multistage fluidized bed reactor
IPC: B01J8/30
Filed: 1958-03-18
Abstract: In a multi-stage fluidised reactor formed by a series of perforated plates mounted in a vertical column, each plate is provided with <FORM:0845655/III/1> a baffle mounted immediately below it and having perforations off-set from the one in the plate above it.  When the fluidising gas is cut off the baffles prevent down-flow of solid. Down comers for the fluidised material may be in the form of tubes passing through both plate and baffle, or formed by an upright plate weir extending above and below the plate and baffle.  In the latter form a vertical column 21, Fig. 3, is provided with perforated plates 22 and vertical weirs 24 extending above and below the plate to form a downcomer passage with the remote wall of the column.  Below each plate 22 is mounted a baffle 23 having holes offset from the one above it.  Preferably the holes in the plates 22 are conical and when air is cut off a small cone of solid forms on the baffle, but does not fall through it.  When the gas stream is switched on through ports 27, 28, 29, the layer of solid on the baffle is blown off by jets 45.  In a modification, the perforated plate 22 is replaced by a funnel shaped member having a small hole at its base which discharges above a baffle having a weep hole aligned on the axis of the funnel and connected to a fill pipe discharging into another funnel member mounted below it.  A downcomer pipe passes through the body of the funnel offset from its axis.  The apparatus may be used for treating uranium oxide with HF.
Patent GB-1090513-A (GB)
Title: Resilient coupling plate for universal joints and universal joints incorporating same
IPC: F16D3/78
Filed: 1966-02-28
Abstract: 1,090,513. Universal joints. SOCIETA APPLICAZIONI GOMMA ANTIVIBRANTI " SAGA " S.p.A. Feb. 28, 1966 [March 3, 1965], No. 8691/66. Heading F2U. A universal joint comprises a vulcanized rubber disc 6 connected to driving and driven shafts (12, (13), Fig. 1 (not shown), by spiders (1), (2) engaged by bolts (3) fitted through metal bushings (8) in the disc 6, which disc is reinforced by number of endless figure-of-eight loops 5 of helically stranded metal cable em: bedded therein and arranged such that each loop 5 embraces two consecutive bushings (8), whereby each bushing in the plate is linked by a pair of loops with its adjacent bushings. The bushings (8) are lightly press-fitted in the disc and have metal flanges (9) chamfer-fitted each end. The disc 6 may be recessed between the bushings as at 11.
Patent GB-1485321-A (GB)
Title: Voice switch circuits for use in loudspeaking telephone circuits
IPC: H04M1/60
Filed: 1975-03-03
Abstract: 1485321 Loud-speaker telephone circuits NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 3 March 1975 [2 May 1974] 8717/75 Heading H4R  A voice switching circuit in a loud-speaking telephone, in which the levels in the transmit 13 and receive 14 channels are compared 17 to insert losses 3, 9 as appropriate in the channels, includes variable loss or gain circuits 21, 22 inserted between the respective channels and the comparator 17 and controlled by the outputs of further comparators 23, 24 through memory circuits 66, 71 which store the controlling value if that transmission direction is operative or are reset 70, 75 if inoperative, the gain of the comparator 17 also being increased (by the signal y) when in the transmit mode. The comparators 23, 24 reduce the break-in threshold whilst the memory circuits enable the speaker who has gained the transmission direction to move or lower his voice. The increase in comparator gain ensures complete switchover. A phase inverter 76 in the transmit channel control loop ensures that the variable loss or gain circuits 21, 22 charge is opposite senses.
Patent GB-719413-A (GB)
Title: Fenders for motor-cars
IPC: B60R19/18
Filed: 1952-04-04
Abstract: 719,413. Vehicle collision - guards. CLAVEAU, E. April 4,1952 [April 7, 1951], No. 8746/52. Class 103(2) A fender for a vehicle comprises a rigid member fixed in a recessed part of the vehicle body and an outer member wholly or partly. pneumatic, which is fitted with an inflation valve and is permanently or detachedly fixed to the rigid member, the external surface of the pneumatic member tangentially extending the outer surface of the body of the vehicle. The fender shown in Figs. 1 and 4 comprises a rubber cover 41 and a cross-beam 44 which enclose an inner air tube 53 fitted with a valve 54. The air tube thins out at its ends where it is surrounded by, the ends of the cover 41 which are doubled back and secured to the ribs 42, 43 of the cover. In a modification. the air tube 53 is dispensed with, the member 41 being united by vulcanization to an inner rubber member fitted with an inflation valve. Vertical reinforcing ribs of rubberized fabric or of textile fabric or metal gauze reinforced if desired by metal wires, may be cemented inside the outer member. In the construction shown in Fig. 7, pneumatic half-fenders 82, 83 are connected to a cross-beam 84 and are provided with guards 86 connected by straight or curved metal or rubber members 87. Fig. 10 shows a construction comprising two pneumatic half-fenders, one half having a tyre cover 105 bent and cemented to an inner member 105a, the other half having a tyre cover 106 secured to the member 105a by a plug 108. Both halves are secured together by a fish-plate 109 provided with a pin 110 screw-threaded to enable the fish-plate to be detachedly connected to a metallic band 44 cemented to the member 105a. In the construction shown in Fig. 9, the fender comprises a tyre cover 41, a mass 53a, of elastic cellular material containing gas bubbles, and a compressed air tube 53 secured to a cross-beam 71.
Patent GB-553151-A (GB)
Title: Improvements in tools for dressing the operative surfaces of grinding wheels and forother purposes
IPC: B24B53/12
Filed: 1942-06-26
Abstract: 553,151. Diamonds &c. tools. MEESON, E. L., and MEESON, J. I. June 26, 1942, No. 8778. [Class 124] In a diamond or like tool for dressing grinding wheels and the like, a slug 7 carrying one or more diamonds is secured in an axially divided contractible collet 5 which is pivotally mounted within a holder 2, and means are provided for adjusting the collet and slug to any desired position between axial alignment with the axis of the holder and a predetermined maximum angle thereto. The collet 5 may be mounted on a transverse pin 6 between a pair of jaws 4 on the holder 2, or it may have universal motion by being pivoted on a block itself pivoted in the holder. Two members 8, 9 are loosely mounted on the collet 5 and the head 3 of the holder, respectively, and have co-operating inclined surfaces 10 whereby relative rotation varies the angular position of the collet and slug about the pin 6. The collet 5 and the member 8 have coaxial engaging surfaces 12, and the assembly is locked in position by a nut 14 screwing into the head 3. Washers 16 of fibre or the like are provided, and the pin 6 is inserted through a hole 8a. The adjacent edges of the members 8, 9 may be calibrated.
Patent GB-181329-A (GB)
Title: Improvements in playing cards
IPC: A63F1/02
Filed: 1922-03-28
Abstract: 181,329. Reach, M. B. June 8, 1921, [Convention date]. Card games. - To facilitate the dealing of a repetition of hands for replay at duplicate bridge, whist, &c., the backs of the cards are marked with numerals or letters one for each deal and each associated with a pointer or other device which is positively indicative of the direction in which the card must be dealt. In the example shown in the Figure, the back of the card bears on the upper half two groups of numerals 1 to 9 indicating that eighteen different hands may be played. The direction in which the card is to be dealt is indicated by the pointers a. Thus, in dealing hand number one, the card shown would be dealt to the dealer; in dealing hand number two the same card would be dealt to the player on the dealer's right and so on. The lower half of the card is a duplicate of the upper half inverted. Letters may be used instead of numerals. In the manufacture of the cards the numerals or letters are impressed on a large quantity of blanks, and the direction-indicators a are afterwards added according to the number of packs required and to the predetermined hands desired. Reference has been directed by the Comptroller to Specification 9269/89.
Patent GB-670185-A (GB)
Title: Improvements in valves for controlling the discharge of steam
IPC: A61L2/07
Filed: 1949-04-01
Abstract: 670,185. Valves. ELSON & CO. 1920, Ltd., and ELSON, E.. March 29, 1950 [April 1, 1949], No. 8868/49. Class 135. A valve for steaming casks &c. comprises a body 1 slidably mounting a stem 5 formed with a valve head 6 urged by steam pressure on to its seat 3 and having a nozzle 10 urged upwardly by a spring 14. The cask is rolled on to the valve so that it depresses the nozzle against the spring 14, presses a projection 15 on the nozzle flange 13 against a rubber sealing ring 16, and opens the valve 3 to admit steam to the cask. A sealing ring 17 prevents escape of steam from the cask to the atmosphere.
Patent GB-1090647-A (GB)
Title: Age hardenable low alloy steels
IPC: C22C38/10
Filed: 1965-03-02
Abstract: A steel comprises:- .C.0.05-0.2% .Ni.8-10% .Mo.0.5-2.5% .Co.3-5% .Mn.0.25% max .Si.0.2% max .Al.0.1% max .S.0.1% max .P.0.1% max the balance, apart from impurities, being iron. The steel may be austenetized at 1500-1700 DEG F., quenched in oil to develop a martensitic structure or in air to develop a bainitic structure and optionally aged at 800-1000 DEG F.
Patent GB-745298-A (GB)
Title: A plastic ship or boat constructed from prefabricated sections
IPC: B65D85/06
Filed: 1953-03-31
Abstract: 745,298. Plastic boat and ship construction. ROBERTS, H. B., and WOOD, E. S. March 31, 1953, No. 8915/53. Class 113. In a plastic ship or boat constructed by fabricating and moulding resinous material into a plurality of ship sections 10, 12, 14, 16, 18, 20, 22 designed and dimensioned to form a ship hull when assembled together, the sections are each shaped at their meeting edge 50 arcuately inboard of the section for providing a fillet receiving groove 54 when the sections are assembled in juxtaposition, the moulded sections are placed in contiguous assembled position and the grooves are filled with a fillet of resinous material in bonding contact with the walls of the groove, the fillet being allowed to set, thus firmly joining the hull sections in a continuous homogeneous and unitary self-sustaining structure. A transverse bracing sheet 104 may be disposed between the marginal areas 50 of adjacent sections. The sections comprise a plastic skin 44 with external longitudinal stiffener welts 30, 34 and spaced transverse welts 46. The port and starboard sections of each complete section may be moulded separately and there may be a separate keel section, which sections, as shown in Fig. 6 have melting edges 50 and are joined by fillets 54. The keel section is recessed to house a moulded plastic keel 62 held in place by plastic resinous fillets 57 and 59. Compartments are provided by horizontally and vertically extending sheets of moulded resinous material 106, 108, 110, 112, joined together and to the sides of the ship by resinous fillets 55. The welts 46 are built-up and continued by polyester resin material and the joints strengthened by U-shaped clamps 52 over the flanges 50. A non-skid pattern finish is moulded into the deck. If the vessel is a landing craft it is provided with a moulded ramp 80 hinged at 100, which ramp has stiffeners serving as treads and may be provided with an armour sheet. The ship may be provided with an armour sheet 116 (Fig. 10), fastened to the welts 30 by partially melting the armour sheet or the welts. Fastening screws 120 may be used; 122 is a flotation material.
Patent GB-926206-A (GB)
Title: Improvements in or relating to steering gear housings, particularly for motor vehicles
IPC: B62D3/04
Filed: 1961-03-10
Abstract: 926,206. Cam mechanism. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. March 10, 1961 [March 12, 1960; Oct. 14, 1960], No. 8932/61. Class 80(3). A steering gear housing for a globoidal steering worm, steering roller and steering shaft comprises a plurality of substantially cylindrical hollow portions formed integrally with each other, at least one of the hollow portions having cavity walls and connecting webs therebetween. A space 1, adapted to accommodate the steering worm, has an inner wall 5 and an outer wall 6 between which longitudinally tapering cavities 7, 8 and 9 are formed. A space 3, which accommodates the steering shaft, is bounded by outer and inner walls 15, 16 separated by tapered cavities 17. The outer wall 16 is extended to form an inner wall 19 and outer wall 20 between which are arranged cavities 21 ... 24. A tubular shell connection 2 has walls 12, 13 and cavities 14.